Mariners Unlikely To Trade From Top Five In Rotation
Despite countless rumors over the years, the Mariners have long been resistant to the idea of trading from their strong rotation. The stance looks to continue at this year’s deadline, as Adam Jude of the Seattle Times writes that the M’s “have given no indication they are willing to move any of their top five starting pitchers this summer.” That being said, Jude speculates that “come July…Luis Castillo’s name figures to resurface in trade chatter.”
The caveat underlines the fact that Castillo is simply no longer viewed as one of the Mariners’ best rotation options. This was reflected when Castillo was twice used as a piggyback starter behind Bryce Miller once Miller returned from a season-opening stint on the 15-day injured list. Emerson Hancock pitched so well in Miller’s regular rotation spot that the M’s kept him on a regular turn, and instead opted for the piggyback strategy on a temporary basis. This didn’t entirely sit well with Miller or Castillo, but the Mariners then moved to a six-man rotation that they’ll employ until the middle of June, once the club is through a busy stretch of the schedule.
It remains to be seen how the M’s will re-adjust back to a five-man rotation at that point, particularly since Castillo has looked a little more like his old self after a rough start to the season. Castillo has allowed one earned run over his last nine innings of work, though his ERA still sits at 5.53 over 55 1/3 total frames. Castillo’s 4.08 SIERA is much more palatable and his walk and strikeout rates are around league average, but the veteran right-hander has also allowed a ton of hard contact.
Most teams would be more than satisfied with this sort of production from a back-end starter, yet Seattle is in the enviable position of having too many starters for too few rotation slots. Beyond Hancock’s breakout, George Kirby, Logan Gilbert, and Bryan Woo are all pitching well, and Miller has looked tremendous since his return. If this wasn’t enough starting depth, the M’s have a few starters (i.e. Dane Dunning, Randy Dobnak, Jhonathan Diaz, Casey Lawrence) with MLB experience down at Triple-A Tacoma, plus there has been speculation that top prospect Kade Anderson could go from Double-A to the majors before 2026 is over.
Dipping too far down the depth chart has never held much appeal for the Mariners, however, though Hancock’s emergence has been a big help on that front. The “you can never have enough pitching” mantra rings especially loudly for a team aiming to make a World Series run, so the M’s would be hesitant to move even Castillo unless they were sure they had enough starting pitching to cover a lot of extra postseason innings.
Castillo’s contract is another reason why the veteran has been the starter the Mariners have at least been open to moving, even as rival teams have surely asked more about the younger and more controllable arms. Castillo is owed roughly $14.6MM for the remainder of the 2026 season, $22.75MM in 2027, and a $25MM option for 2028 will vest if Castillo pitches at least 180 innings in 2027 and finishes the season healthy.
The no-trade protection that existed in Castillo’s extension is now up, so he can be dealt without his approval. That removes one potential obstacle to a deal, though the price tag remains steep for a 33-year-old pitcher who might be a mid-rotation starter at best at this stage of his career. Seattle probably doesn’t have interest in eating much or any of Castillo’s salary, and trading Castillo for another player with a hefty contract only has limited appeal, unless the M’s felt this hypothetical player would help will another need (probably on offense).
AL West Notes: Miller, Castillo, Langford, Rangers, Moore
Bryce Miller will start and Luis Castillo will again be the piggyback pitcher for the Mariners on Sunday, but the team will then adopt a six-man rotation, the Seattle Times’ Adam Jude writes. Friday’s game with the Diamondbacks kicked off a stretch of 16 games in 17 days for the Mariners, so shifting back to a six-man rotation will help keep the entire pitching staff fresh. The rotation plan will then be re-evaluated on June 15 (Seattle’s next off-day), and sticking with the six-man format could be an option, if the M’s don’t again use two starters in a piggyback set-up.
Simply establishing a plan for the next couple of weeks is a positive step for the Mariners, as both Miller and Castillo weren’t pleased with what they felt was a lack of communication from the club. Manager Dan Wilson, pitching coach Pete Woodworth, president of baseball operations Jerry Dipoto, and GM Justin Hollander all spoke with the two right-handers this week and now everyone seems to be “on the same page,” as Miller put it. Emerson Hancock‘s breakout season has given Seattle six viable starters and a bit of awkwardness in how to best manage everyone’s workload, though in the big picture, there’s no such things as too much good pitching for a team hoping to make an even deeper playoff run.
More from around the AL West…
- Wyatt Langford is slated to start a Triple-A rehab assignment today. The Rangers outfielder hasn’t played since April 21 due to a right forearm strain, and his stay on the 10-day injured list has been longer than expected since Langford’s previous attempt at a minor league rehab stint was paused due to more forearm discomfort. Pegged by many as a candidate for a true breakout in 2026, Langford got off to a slow start before his IL placement, hitting only .238/.274/.363 in his first 84 plate appearances.
- In addition to Langford, Rangers manager Skip Schumaker also gave reporters (including the Dallas Morning News’ Shawn McFarland) updates on two other sidelined players. Corey Seager is set for a live batting practice today, a week after a previous live BP session was postponed due to more soreness in the shortstop’s ailing back. “The running has been maybe the main thing” holding Seager back, Schumaker said, through Seager has been able to play catch and take swings. Josh Smith has also rejoined the Rangers and restarted baseball activities, though as with Seager, there isn’t any timetable for when Smith might be back in the Texas lineup. A right glute strain sent Smith to the 10-day IL on May 4, but what was initially expected to be a minimal IL stint was extended due to wrist soreness, and then the more serious matter of a bout of viral meningitis that led to a hospital stay.
- Former Angels top prospect Christian Moore exclusively played second base in his first two pro seasons but he has split his time between second and third base this season at Triple-A Salt Lake. Moore is now getting a look at the entirely new position of left field, Jeff Fletcher of the Orange County Register writes. Angels assistant GM Joey Prebynski said Moore will be used at all three positions, and “for us, it’s just about continuing to get him reps out there, seeing balls off the bat in left field.” No team in baseball has gotten less from its left fielders in 2026 than the Angels, as Josh Lowe‘s struggles (and subsequent demotion to Triple-A) have been the biggest reason why the position has been a black hole for the team. With the Oswald Peraza/Adam Frazier platoon in place at second base, Moore’s next trip to the majors could very well see him get much more time away from his natural position. Moore made his MLB debut last season and hit only .198/.284/.370 over 184 PA, but he has continued to crush Triple-A pitching in his second year at the top minor league level, with a .282/.439/.481 to show for 171 PA for Salt Lake in 2026.
Mariners To Reinstate Bryce Miller, Adjust Rotation
Right-hander Bryce Miller will make his Mariners season debut on Wednesday against the Astros, reports Ryan Divish of the Seattle Times. Miller opened the year on the injured list after straining an oblique in the spring. Divish adds that Seattle will initially go to a six-man rotation, then potentially move to a piggyback situation with Miller and right-hander Luis Castillo.
Injuries have derailed Miller in back-to-back seasons. An elbow issue slowed him for much of 2025. The righty first went on the IL with elbow inflammation in mid-May, but returned after less than three weeks. He made two starts, then went right back on the injured list. Miller came back in August. He remained healthy to close the year and contributed some important innings in the postseason.
Miller made it through just one Spring Training appearance before going down with the oblique injury. His absence opened the door for Emerson Hancock. The former prospect has had chances in the rotation in recent seasons, but they have never amounted to much success. Hancock had a 4.50 ERA or worse in each of his three years as an occasional member of Seattle’s staff.
The 2026 campaign has been a complete reversal for the 26-year-old Hancock. He’s been one of the more surprising breakouts of the young season. Hancock had a mid-2.00s ERA with more than a strikeout per inning heading into Friday’s outing against the White Sox. He allowed five earned runs over six innings in Chicago, but still emerged with his third win. MLBTR’s Steve Adams dug into Hancock’s stellar season in this article for Front Office subscribers.
A decision on Hancock and the rest of the rotation was coming as Miller neared his return. Instead of bumping Hancock or the struggling Castillo, Seattle is keeping everyone in the mix, at least for now. As Divish points out, the club doesn’t have an off day until May 21. Rolling with a six-man rotation will afford the group some extra rest during an arduous stretch of the calendar.
By performance, Castillo deserves to be booted from the group. The righty tossed six scoreless innings against the Yankees in his season debut. Since then, he’s been crushed for 24 earned runs over six outings. Castillo ranks in the fourth percentile for average exit velocity and in the seventh percentile for hard-hit rate. The 33-year-old might be hitting the wall at this stage of his career. Castillo is still due $22.75MM next season, plus $25MM in 2028 if certain thresholds are met, so Seattle is incentivized to find a way for him to add value. The piggyback setup with Miller might help Castillo get back on track.
Photo courtesy of Rick Scuteri, Imagn Images
Bryce Miller To Make Rehab Start
Mariners right-hander Bryce Miller will head out on a rehab assignment this weekend. The 27-year-old is working his way back from an oblique injury. He’ll start for Triple-A Tacoma on Saturday, general manager Justin Hollander told reporters, including Daniel Kramer of MLB.com.
Miller fell behind the other starters during the spring after experiencing tightness in his side. The issue ultimately landed him on the injured list to open the season. The righty is coming off an injury-plagued 2025 campaign. He went down with elbow inflammation midway through May. Miller initially returned from the injury at the end of May. He was hammered for eight earned runs over nine innings and went back on the IL with the same injury.
The elbow injury didn’t stop Miller from contributing in the postseason. Despite an ineffective eight starts to close the regular season, he delivered three strong outings in the playoffs. Miller held the Tigers to two earned runs in his lone ALDS appearance, then notched a pair of one-run outings against the Blue Jays in the ALCS. He earned the win in Game 1 of the series with a quality start against Toronto.
Miller is expected to need the full 30 days allotted for the rehab assignment, per Ryan Divish of the Seattle Times. The plan is for him to throw two innings or 30 pitches with the Rainiers tomorrow. Now that Miller has a definitive timeline, questions will arise about who he’ll replace in the starting rotation. Right-hander Emerson Hancock slotted into Miller’s spot to open the season. He’s been phenomenal, posting a 2.28 ERA with a 25:4 strikeout-to-walk ratio.
“If we get a month from now, and that’s what happens, we’ll figure it out,” Hollander said when asked about potentially having six pitchers for five rotation spots. “We haven’t made any decisions on that whatsoever.”
Hancock has had shots in the past, as the Mariners have dealt with injuries to Miller, George Kirby, and Logan Gilbert. It’s never gone nearly this well. The 26-year-old had an ERA in the mid to high-4.00s in each of his first three big-league seasons. His “best” strikeout rate heading into this year was his 16.6% mark in 2025. That number sits at 29.4% through four starts this season. Hancock has made significant arsenal changes, prioritizing his four-seamer over his sinker and throwing his sweeper 27.4% of the time, up from 3.2% in 2025. His Stuff+ is up to 107. He’d topped out at a 91 Stuff+ in his three previous seasons.
Photo courtesy of Rick Scuteri, Imagn Images
Bryce Miller May Start Season On Injured List
Mariners right-hander Bryce Miller may not be available for the start of the season. Per Ryan Divish of The Seattle Times, Miller felt some soreness in his left side today and didn’t finish his bullpen session. “He’s definitely behind,” Mariners general manager Justin Hollander said. “It’s the type of injury where it seems wise not to push him too fast. Obviously, we won’t make any decisions until we need to.”
Miller was slowed by some left side soreness about two weeks ago. An MRI revealed some inflammation and he was given a platelet-rich plasma injection. His planned bullpen session today was part of a ramp-up that could have seen him stretched out for the start of the season. This setback appears to put that in jeopardy. He is not being fully shut down, as he will still be playing catch and doing some other activities, but the Mariners will want the soreness to clear before he fully lets it fly from a mound again.
It doesn’t seem like this is a major issue but it could be an early test of Seattle’s rotation depth. The Mariners have a strong starting group when everyone is healthy, as they have Logan Gilbert, George Kirby, Bryan Woo, Luis Castillo and Miller. Once they have to dip into their depth, things get a bit more questionable. Divish mentions Cooper Criswell and Emerson Hancock as the two guys most likely to step up if Miller does miss some time.
Criswell’s best season to date was his 2024 showing with the Red Sox. He tossed 99 1/3 innings in a swing role, allowing 4.08 earned runs per nine. His 17.2% strikeout rate was subpar but he only walked 7.3% of opponents and induced grounders on 50.3% of balls in play. In 2025, the Sox added some arms and Criswell was mostly blocked, only making seven big league appearances. He had a decent showing in Triple-A, throwing 65 2/3 innings with a 3.70 ERA, 24.5% strikeout rate, 10.1% walk rate and 49.4% ground ball rate.
Despite the passable numbers, Criswell exhausted his final option in 2025, pushing him to fringe roster status. The Sox signed him to a 2026 deal with an $800K salary, a bit above the $780K league minimum, even though he hadn’t yet qualified for arbitration. The plan seemed to be to pass him through waivers, allowing him to serve as Triple-A depth even though he’s out of options. That plan didn’t work, as the Mets claimed him off waivers in December. When the Mets nudged him off their roster, Seattle sent some cash to Queens to get him from DFA limbo.
Criswell’s number are fine but there’s a bit of risk there. His velocity doesn’t reach 90 miles per hour, making him a soft-tosser in this era. He has been able to get guys out regardless, but it’s a fine line to walk.
Hancock is a former sixth overall pick but his big league performance hasn’t lived up to that status yet. Over the past three years, he has given the M’s 162 2/3 innings with a 4.81 ERA, 15.6% strikeout rate, 7.6% walk rate and 40.1% ground ball rate.
One thing that may perhaps work in Criswell’s favor is that Hancock still has an option, so he could be sent to Triple-A to stay stretched out there. Since Criswell is out of options, he needs to either be in the rotation or the bullpen. If Criswell does end up with the rotation spot, that would help alleviate the pressure in the bullpen. Seattle’s eight projected relief arms are all out of options except for Matt Brash and Jose A. Ferrer, who are too good to be sent down.
If Hancock and Criswell are both up in the big leagues, Blas Castano would be the only optionable depth starter in the Triple-A rotation. He has just one major league appearance on his track record and posted a 5.19 ERA in Triple-A last year. The Mariners have Dane Dunning, Jhonathan Díaz, Randy Dobnak and Casey Lawrence in camp as non-roster invitees with some big league experience.
Photo courtesy of Rick Scuteri, Imagn Images
Mariners Notes: Miller, Crawford, Labrada
General manager Justin Hollander updated reporters (including Seattle Sports’ Shannon Drayer and MLB.com’s Daniel Kramer) about some injury situations in the Mariners’ camp, including some side soreness for Bryce Miller. The right-hander reported some discomfort on his left side on Thursday, and a subsequent MRI revealed inflammation. Miller received a PRP shot and will be fully re-evaluated in about a week, though he could begin playing catch in a few days.
Drayer described Miller’s shutdown as “very precautionary,” and the soreness was mild enough that Miller might not have even told the team if the issue has arisen during the regular season. That said, there obviously isn’t any reason for Miller or the Mariners to push things during Spring Training. It isn’t out of the question that Miller could start the season on the 15-day injured list as a further precaution, or if he isn’t able to get back onto the mound in a week’s time to continue his normal spring ramp-up.
Miller is already coming off an injury-marred season that saw him limited to 90 1/3 regular-season innings. Bone spurs in his throwing elbow twice sent Miller to the IL, though he returned in the last half of August to make eight more starts, and then posted a 2.51 ERA over three starts and 14 1 1/3 innings in the playoffs.
Rather than undergo surgery to address the bone spurs, Miller has opted for such non-surgical treatments as a cortisone shot, a PRP shot, and a Synvisc injection to try and avoid a procedure. It was just over a week ago that Miller stated he had been able to have essentially a normal offseason, though this seemingly minor bout of side soreness is surely unwelcome.
If things developed to the point that Miller did need an IL trip, Emerson Hancock would probably be Seattle’s top choice as a rotation fill-in. Blas Castano and long man Cooper Criswell are also on the 40-man roster, or the Mariners could opt to select the contract of a non-roster invite like Casey Lawrence or Dane Dunning.
Turning to the diamond, J.P. Crawford is expected to play in his first Cactus League game of the spring on Tuesday. The veteran shortstop will be in Tuesday’s lineup as the DH, as Crawford is still recovering from a shoulder issue that has slowed his progress in camp. Hollander said the plan is for Crawford to return to shortstop the following week, which should give him plenty of time to be ready for Opening Day.
There has never been any concern that Crawford would miss any regular-season action, as the M’s were simply easing Crawford into his spring work. He is taking part in a live batting-practice session today to get some at-bats against actual pitchers under his belt before his debut game.
After an oblique strain and a fractured right hand limited Crawford to 105 games in 2024, he rebounded for a healthy 2025 campaign and a .265/.352/.370 slash line with 12 homers over 654 plate appearances (translating to a 113 wRC+). Crawford is now entering both his age-31 season, and the final year of the five-year, $51MM extension he signed with the Mariners in April 22. With star shortstop prospect Colt Emerson on the verge of his MLB debut, Crawford’s future in Seattle could be in doubt, so he’ll need a strong season to impress the M’s or potential other suitors as free agency looms.
Prospect Victor Labrada made his Triple-A debut in 2025 and could be on the radar for his first big league call-up at some point in 2026, but his season could be delayed by an oblique strain. Hollander said Labrada hurt his oblique yesterday while swinging in the batting cage, and an MRI today will determine the extent of the injury.
Labrada hit .265/.397/.376 over 235 plate appearances with Triple-A Tacoma, and he has an overall .267/.365/.402 slash line across 2155 PA in his minor league career. The 26-year-old doesn’t have much power, but he has terrific speed, with 172 steals out of 222 attempts. This speed and solid glovework at all three outfield positions could make Labrada at least a backup outfielder at the MLB level, and his ability to stick as a regular will depend on how well he can reach base and capitalize on what Baseball America describes as “solid bat-to-ball skills to hit the ball to the alleys.” BA ranks Labrada as the 26th-best prospect in the Mariners’ farm system.
Mariners Notes: Garver, Arroyo, Miller
After the Mariners declined their end of Mitch Garver‘s $12MM mutual option last fall, Garver took his $1MM buyout and then sat through a “super slow offseason. Never really got any good offers or formal offers,” as the catcher told the Seattle Times’ Adam Jude. Garver’s long wait in free agency ended two days ago when he re-signed with the M’s on a minor league deal, and Garver credited his fellow backstop Cal Raleigh with helping get the ball rolling on the reunion.
Earlier this week, Garver said “Cal reached out and said, ‘Maybe you should try calling the Mariners.’ So we called Justin [Hollander, the Mariners’ GM]. Within 24 hours, we were able to work something out.” Reports from December indicated that Seattle had some interest in bringing Garver back, and though Andrew Knizner was signed to a one-year, $1MM guaranteed deal, Garver’s return gives the M’s some more depth behind the plate.
Raleigh made 38 starts at DH last season, as the Mariners wanted to give the slugger a break from catching duties while still keeping his power bat in the lineup. Since a fresh and productive Raleigh is critical to Seattle’s hopes, the team figures to use this same tactic again in 2026, opening the door for plenty of time for a backup catcher. It perhaps isn’t out of the question that both Garver and Knizner are on the 26-man roster, though the M’s are probably more likely to stick with Raleigh and one backup as the catching corps.
Elsewhere at the Mariners’ camp, Adam Divish of the Seattle Times writes that infield prospect Michael Arroyo will get some looks as a third baseman and left fielder once Arroyo returns from national team duty with Colombia during the World Baseball Classic. Arroyo has never played in the outfield as a pro, and played in a handful of games at the hot corner when playing with the Mariners’ Dominican Summer League team in 2022. Otherwise, Arroyo has played exclusively as a middle infielder, and was only a second baseman and DH in the minors in 2025.
Heading into 2026, Baseball Prospectus ranks Arroyo as the 36th-best minor leaguer in the sport, and The Athletic’s Keith Law (49th), ESPN’s Kiley McDaniel (62nd), and MLB Pipeline (67th) all have Arroyo within their preseason top-100 rankings. The consensus on Arroyo’s defense is that he could end up as a decent big league second baseman, though between offseason acquisition Brendan Donovan and a bunch of other infield prospects, it makes sense that the Mariners would want to expand Arroyo’s versatility.
2027 is probably the likeliest date for Arroyo’s Major League debut. He just turned 21 last November, and had a modest .255/.376/.341 slash line over 250 PA with Double-A Arkansas in 2025. Arroyo’s approach at the plate is well-regarded by scouts, but he’ll need some bigger numbers in the minors (and probably an injury or two ahead of him on the depth chart) to get himself on the radar for a big league call-up this year.
In a longer piece from Ryan Divish, Bryce Miller reported good health and a normal offseason routine in the wake of an injury-plagued 2025 season. Miller was limited to 18 starts and 90 1/3 innings in 2025 due to a pair of stints on the injured list, as Miller battled bone spurs in his throwing elbow. Rather than a surgical option, Miller received a cortisone shot and a PRP shot to help his recovery, and he finished his tough year on the high note of a 2.51 ERA over three starts and 14 1/3 innings during Seattle’s postseason run.
Following the season, Miller said he got a Synvisc injection, which is “like a gel, like a joint lubricant.” This allowed him to proceed as normal this winter, and he may be able to avoid surgery altogether.
“[Dr. Keith] Meister was like, ‘Don’t touch it [Miller’s elbow]. If it feels good, don’t touch it’,” Miller said. ” ‘Now that we know kind of how to help it, if you feel anything in the offseason or anything in Spring Training or anything during the year, just get another injection, to get back rolling again now that we know how to fix it.’ He advised against doing anything until I feel something and I haven’t felt anything.”
Miller is already up to 98mph in his live batting-practice sessions, and he has added 15 pounds of muscle over the offseason. Now entering his fourth MLB season, Miller looked like a breakout star when he had a 2.94 ERA over 180 1/3 innings with the Mariners in 2024, before his bone spurs hampered his progress last year.
Mariners, Bryce Miller Avoid Arbitration
The Mariners announced that they have avoided arbitration with right-hander Bryce Miller by agreeing to a one-year deal with a club option for 2027. Miller will make a $2.4375MM salary in 2026, according to Adam Jude of The Seattle Times. The club option is worth $6.075MM and has a $15K buyout, so Miller is guaranteed $2.4525MM, per Jon Heyman of The New York Post. The club option is voided if Miller finishes in the top five of Cy Young voting in 2026. He will still be controllable via arbitration through 2029 regardless of how the contractual situation plays out.
Miller was one of 18 players who did not have a deal in place when the arbitration filing deadline passed earlier this month. He just qualified for arbitration for the first time this offseason as a Super Two player, meaning he will go through the process four times instead of the standard three. MLBTR contributor Matt Swartz projected him for a $2.4MM salary. Miller filed at $2.625MM and the Mariners at $2.25MM.
A gap of just $375K is a drop in the bucket for a major league baseball club but it compounds when looking at the bigger picture. A player’s subsequent trips through arbitration see his salary grow as a percentage of where he started. Therefore, a $375K gap can actually lead to a swing of millions over three years, or four in this case.
Most teams these days adopt a “file and trial” approach, which means they cut off negotiations of one-year deals after the filing deadline. This is to give them leverage in pre-deadline talks and also to prevent players from filing absurdly high numbers in an attempt to set out an aggressive bargaining stance. An arbiter can only pick the player’s or the team’s number, not a midpoint.
Even if a team does have a “file and trial” policy, exceptions are made for deals that are longer than one year, even if that extra year is an option. That gives the club a path to avoid a potentially contentious hearing while sticking to their policy, in a sense. A deal with an option can’t be used as a comparison point in future arb hearings as well, which is a factor.
Arbitration hearings are generally viewed as part of the business but occasional situations have cropped up where the relationships between a player and a team appeared to have been damaged. Three years ago, Corbin Burnes said as much in the wake of his hearing with the Brewers. Miller and the Mariners have staved off any possibility of that scenario by meeting roughly in the middle between their two filing numbers.
As mentioned, the club option is mostly a measure to avoid this agreement being used as a future comp. Even if it is voided or turned down, Miller would remain under club control through 2029 via arbitration.
There will now be no more than 16 hearings this year. Since the 18 players filed earlier this month, Cade Cavalli and the Nationals reached a new agreement and now Miller is off the list as well. Miller was the last Mariner in the arb class without a determined salary, so the club is now wrapped in that department.
Photo courtesy of Steven Bisig, Imagn Images
Bryce Miller Expected To Avoid Elbow Surgery
Seattle right-hander Bryce Miller is not expected to need elbow surgery this offseason, reports Adam Jude of the Seattle Times. Miller had multiple stints on the injured list this past season due to elbow inflammation. He returned for the final six weeks of the regular season and made three starts in the playoffs. “I finished the year the best I felt all year — three good starts, I felt like,” Miller told Jude. “My body and my arm feel good, so just get better, get fully healthy and be ready to go from Day 1 next year.”
Miller was diagnosed with a bone spur in his elbow and received a PRP injection in early June. He relayed to Jude that he has an upcoming appointment to determine the next steps in treatment. Miller said the likely route is a gel cortisone injection early this offseason, and potentially another one at the start of spring training. “Now that we know how to deal with the bone spur, we can figure out what we need to do exactly with it and go from there,” Miller told Jude. He added that he’d be “surprised” if the appointment led to an invasive procedure.
The elbow injury seemed to derail the early portion of Miller’s 2025 campaign. He struggled to a 5.22 ERA through his first eight starts. The control was the biggest red flag. After posting a solid 6.4% walk rate in 2024, Miller nearly doubled that mark to 12.1% over his first 39 2/3 innings. He hit the IL on May 14, though it was a minimum stint. Miller returned at the end of May, but only lasted two starts. He was hammered for eight earned runs over nine innings and headed back to the IL.
The results following Miller’s second absence weren’t much better. He closed the regular season with a 5.62 ERA over eight starts, but there were encouraging signs heading into the playoffs. Miller’s fastball velocity improved by nearly one mph. He cut his walk rate to 6.3%. Miller was mostly done in by a massive 24.5% home run to fly ball rate, which should be expected to regress over a larger sample.
Miller put everything together in the postseason. He limited the Tigers to two runs over 4 1/3 innings in Game 4 of the ALDS. Miller then came through with six dominant innings in a win over Toronto to kick off the ALCS. He returned in Game 5 with four innings of one-run ball, though Toronto’s bullpen couldn’t hold a late lead. Miller’s fastball velocity topped out at 98.1 mph in his second start against the Mariners.
The uneven 2025 season was a disappointing follow-up to a tremendous 2024 for Miller. He built on a solid rookie year, putting together 180 1/3 innings of a sub-3.00 ERA and nearly a strikeout per inning last season. Miller’s 3.85 xFIP and 3.80 SIERA suggested he might not have been as good as his 2.94 ERA, but he looked like a fixture in a talented rotation.
After a remarkably healthy 2024, Seattle’s starters were hampered by injuries this past season. Logan Gilbert spent all of May and part of June on the IL with an elbow flexor strain. George Kirby missed the first two months of the season with shoulder inflammation. Bryan Woo went down with a pectoral injury in September. He was available for just 4 1/3 innings in the playoffs.
Seattle’s rotation led the league in ERA in 2024. The staff slipped to 13th this past season. With Miller managing his elbow injury without surgery, and an offseason for Woo to get back to full health, the rotation should once again be among the best in the league next season. The unit will be key in getting the team back to the postseason in 2026.
Mariners Select Sauryn Lao
The Mariners announced a series of roster moves today, including the previously-reported reinstatement of Bryce Miller from the 15-day injured list. They also selected the contract of fellow righty Sauryn Lao. To open active roster spots for those two, righties Jackson Kowar and Casey Legumina were both optioned to Triple-A Tacoma. To open a 40-man spot for Lao, righty Trent Thornton has been transferred to the 60-day injured list.
Last night, Seattle starter Logan Gilbert had a surprisingly rough start. He lasted only two innings against the Phillies but not before allowing six runs. To get through the rest of the game, the M’s got three innings from Carlos Vargas, two from Legumina and one from Kowar. Legumina tossed 38 pitches and Kowar 30.
Miller is starting tonight and it’s unclear how much length he can give. He has been on the IL for over two months due to elbow inflammation. He got to 5 2/3 innings and 76 pitches in his most recent rehab start. It’s possible he could give the M’s something like that tonight but there’s also some natural uncertainty. To freshen up the bullpen behind Miller, the M’s have sent out Kowar and Legumina to bring in Lao.
Lao was selected to the roster in April. He got to make his major league debut on April 22nd, tossing one and two thirds scoreless innings. He was optioned to the minors the next day and designated for assignment a week later. He cleared outright waivers, allowing the Mariners to bring him back in a non-roster capacity.
Interestingly, the M’s have been stretching him out in Triple-A, even though he’s primarily been a reliever throughout his career. He has thrown 66 innings over 21 appearances this year with a flat earned run average of 3.00. He has struck out 26.3% of batters faced while limiting walks to a 6.7% clip. That should allow him to provide the M’s with multiple innings of relief, if needed.
As for Thornton, it was reported a couple of weeks ago that he is done for the season due to a torn left Achilles tendon. He will be spending the rest of the year on the IL. He is making $2MM in 2025 and could be retained for 2026 via arbitration. However, given his health uncertainty, it’s entirely possible the Mariners decide to non-tender him.
Photo courtesy of Mark J. Rebilas, Imagn Images